package com.atguigu.springcloud.alibaba.controller;

import com.atguigu.springcloud.alibaba.service.PaymentService;
import com.atguigu.springcloud.alibaba.entities.CommonResult;
import com.atguigu.springcloud.alibaba.entities.Payment;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
public class PaymentController {

    @Resource
    private PaymentService paymentService;

    @Value("${server.port}")
    private String serverPort;

    @Resource
    private DiscoveryClient discoveryClient;

    @PostMapping(value = "/payment/create")
    public CommonResult create(@RequestBody Payment payment){
        int result =  paymentService.create(payment);
        log.info("******插入结果：" + result);
        if (result > 0) {
            return new CommonResult(200, "插入数据库成功,serverPort:"+ serverPort, result);
        } else {
            return new CommonResult(444,"插入数据库失败",null);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult getPaymentById(@PathVariable("id") Long id){
        Payment paymentById = paymentService.getPaymentById(id);
        log.info("******查询结果：" + paymentById);
        if (paymentById != null) {
            return new CommonResult(200, "查询成功,serverPort:" + serverPort, paymentById);
        } else {
            return new CommonResult(444,"没有对应记录，查询ID:"+id,null);
        }
    }

    // 对外暴露 微服务的各种信息 类似关于我
    @GetMapping(value = "/payment/discovery")
    public Object discovery(){
        // 盘点登陆好的微服务有哪些
        List<String> services = discoveryClient.getServices();
        // 第一种获取服务列表
        for(String element : services){
            // 获得服务列表的信息清单 注册中有几个微服务
            log.info("*****element:" + element);
        }

        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances){
            log.info(instance.getServiceId() + "\t" + instance.getHost() + "\t" + instance.getPort() + "\t" + instance.getUri());
        }

        return this.discoveryClient;
    }

    @GetMapping(value = "/payment/lb")
    public String getPaymentLB(){
        return serverPort;
    }

    /**
     * 超时测试
     * @return
     */
    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout(){
        // 暂停几秒钟线程
        try {
            TimeUnit.SECONDS.sleep(3);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return serverPort;
    }


    // ----------- zipkin -------
    @GetMapping("/payment/zipkin")
    public String paymentZipkin(){
        return "hi,i'am paymentZipkin server fall back,welcome to atguigu, O(∩_∩)O";
    }

}
